/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.tom_roush.pdfbox.pdmodel.fixup;

import com.tom_roush.pdfbox.pdmodel.PDDocument;
import com.tom_roush.pdfbox.pdmodel.fixup.processor.AcroFormDefaultsProcessor;
import com.tom_roush.pdfbox.pdmodel.fixup.processor.AcroFormGenerateAppearancesProcessor;
import com.tom_roush.pdfbox.pdmodel.fixup.processor.AcroFormOrphanWidgetsProcessor;
import com.tom_roush.pdfbox.pdmodel.interactive.form.PDAcroForm;

public class AcroFormDefaultFixup extends AbstractFixup
{
   public AcroFormDefaultFixup(PDDocument document)
   {
      super(document);
   }

   @Override
   public void apply() {
      new AcroFormDefaultsProcessor(document).process();

      /*
       * Get the AcroForm in it's current state.
       *
       * Also note: getAcroForm() applies a default fixup which this processor
       * is part of. So keep the null parameter otherwise this will end
       * in an endless recursive call
       */
      PDAcroForm acroForm = document.getDocumentCatalog().getAcroForm(null);

      // PDFBOX-4985
      // build the visual appearance as there is none for the widgets
      if (acroForm != null && acroForm.getNeedAppearances())
      {
         if (acroForm.getFields().isEmpty())
         {
            new AcroFormOrphanWidgetsProcessor(document).process();
         }

         // PDFBOX-4985
         // build the visual appearance as there is none for the widgets
         new AcroFormGenerateAppearancesProcessor(document).process();
      }
   }
} 